I like the pose best in the second, but the first is potentially the most interesting because of the lighting. I would have liked to have seen a more dynamic pose with the same lighting because the balance between sun as a back light and fill flash on the front is really very nice.

Try a crop of #1 as a portrait. For me the ambience just detracts a tad from the beautiful backlighting of her hair. Also as suggested decreasing the shadow on the left side of her face a tad with Photoshop or equivalent.